Shimano-MTB - #ThrowbackThursday - Back in 1992 XTR M900 was born. The ultimate in off-road component systems. The "R" was added to highlight that it is a "racing model" of Deore XT.
![Amazon.com : SunRace M900 Rear Derailleur - 9-Speed Medium Cage Black Shimano Rear : Sports & Outdoors Amazon.com : SunRace M900 Rear Derailleur - 9-Speed Medium Cage Black Shimano Rear : Sports & Outdoors](https://m.media-amazon.com/images/I/71g4czLI0vL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : SunRace M900 Rear Derailleur - 9-Speed Medium Cage Black Shimano Rear : Sports & Outdoors
![SHIMANO XTR / M900 (<I>Not Light Action</I>) REAR DERAILLEUR - BikePro.com / Buyer's Guide / Shimano Mountain Bicycle ATB Rear Derailleurs / bike parts SHIMANO XTR / M900 (<I>Not Light Action</I>) REAR DERAILLEUR - BikePro.com / Buyer's Guide / Shimano Mountain Bicycle ATB Rear Derailleurs / bike parts](http://www.bikepro.com/products/rear_derailleurs/rear_der_jpg/h_xtr_rear.jpg)